Association between caffeine intake and erectile dysfunction: a meta-analysis of cohort studies
Open accessAbstract
Background: Erectile dysfunction (ED) is a common condition with various contributing factors, including lifestyle and dietary habits. Caffeine, a widely consumed stimulant, has been linked to multiple physiological effects on vascular function and hormonal balance that might influence sexual function. This meta-analysis aims to evaluate the association between caffeine intake and the risk of ED by analyzing data from cohort studies. Methods: A systematic search was conducted across PubMed, Web of Science, Scopus, and Embase databases, and a manual search was conducted on Google Scholar for studies on the relationship between caffeine intake and ED in adult men. The search included observational studies published up to April 1, 2024. Four cohort studies were included, and their data were extracted and analyzed by STATA version 18. Results: Four included cohort studies comprised 51,665 cohort members. The study population included adult males, on average, aged 18 to 80. The results indicate that there was no significant relationship between coffee consumption and the risk of ED (relative risk [RR] = 0.94, 95% CI: 0.86–1.03; p = 0.999). Conclusions: The current evidence suggests no significant relationship between caffeine intake and ED, but limited studies limit conclusions. Future research should focus on larger sample sizes, standardized outcome assessments, and different dosages and forms of caffeine consumption.
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Pooled data from two large meta-analyses found no causal association between caffeine intake and erectile dysfunction.
“but pooled data from two large meta-analyses found no causal association.[41][42][43]”
From A systematic appraisal of emerging alternative therapies in men’s health and wellness (2025) · cites this paper as [41]
The Results (Caffeine and ED; page not provided) report no statistically significant association in a meta-analysis of four cohort studies. The Conclusion says the limited evidence does not permit robust conclusions and calls for further research to clarify causality. Thus, this source supports a lack of detected association, not a finding of no causal association. (LLM, conf=0.88)
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“It acts as a nonselective phosphodiesterase inhibitor; by inhibiting phosphodiesterase, caffeine increases the levels of intracellular cyclic guanosine monophosphate (cGMP) and cyclic adenosine monophosphate (cAMP) [39].”
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Sorted by citations
A systematic appraisal of emerging alternative therapies in men’s health and wellness
Qaoud, Y., Morcos, M., Macdonald, M., Shoeib, A., Qureshi, Y., Mak, M., Ross, A., Vigil, H., & Witherspoon, L. (2025) · Canadian Urological Association Journal · doi:10.5489/cuaj.9368 · Cited by 1 · see citing works
- Authors
- Karimi, M., Asbaghi, O., Kazemi, K., Sedgi, F. M., Soleimani, E., & Moghadam, H. K.
- Affiliations
- Bogomolets National Medical University (UA)
- Shahid Beheshti University of Medical Sciences (IR)
- Urmia University (IR)
- Tabriz University of Medical Sciences (IR)
- Varastegan Institute for Medical Sciences (IR)
- Corresponding author
- Karimi, Mehdi
- Asbaghi, Omid
- Kazemi, Kimia
- Sedgi, Fatemeh Maleki
- Soleimani, Ensiye
- Moghadam, Hanieh Keikhay
- Venue
- Journal of Health, Population and Nutrition
- Published
- 2024-09-28
- Volume
- 43
- Issue
- 1
- Pages
- 154-154
- ISSN
- 1606-0997 (ISSN-L)
- 2072-1315
- PMC
- PMC11439322
- OpenAlex
- W4402941937
- Cited by
- 4
- References
- 6
- Citations by year
- 2026: 2 · 2025: 2
- FWCI
- 0.25
- Type
- journal article
- Language
- en
- Open access
- gold
- doi.org
- Locations
- Journal of Health Population and Nutrition (publishedVersion, cc-by)
- PubMed Central (publishedVersion, cc-by)
- PubMed (publishedVersion)
- DOAJ (DOAJ: Directory of Open Access Journals) (publishedVersion)
- Topics
- Health Sciences › Medicine › Pharmacology › Coffee research and impacts
- Health Sciences › Medicine › Psychiatry and Mental health › Sexual function and dysfunction studies
- Health Sciences › Health Professions › General Health Professions › Male Reproductive Health Studies
- Keywords
- caffeine consumption, erectile dysfunction, coffee consumption, sexual function, vascular function, hormonal balance, men's health
- MeSH terms
- Adolescent, Adult, Aged, Aged, 80 and over, Caffeine, Coffee, Humans, Erectile Dysfunction, Male, Middle Aged, Risk Factors, Cohort Studies, Young Adult
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